What i really like about anim8ors morphing system is that you have complete control over what goes on, without being restricted by any preset 'choice' type arrangement.
If a face has (eg)300 points, you could probably add 3 morph tagets to each point. ie: point1 3morphs: moveon x axis, moveon y axis, moveon z axis. point 2.. etc..
This of course is all very tongue in cheek. Setting it up with 900 morph targets just isn't practical. But its possible! (unless there is a limit i'm unaware of. I've had about 40 on 1 object).
What i'm trying to say is that, it's open for tweeks and workarounds.
I made this a few years ago, not long after morphs were introduced.http://www.youtube.com/watch?v=cHgT5TFmw3g
I'm sure it can be done a lot better than that in anim8or, with a bit more time and effort spent.
Sometimes, making undesirable results can lead to something new.
But moving on: Theres a thread here that you mite find interesting. I don't know how to get the link for it, but its a thread in the Anim8or Forum General Category > ASL Scripts > SCRIPT REQUEST: Object to Influence points (with tutor in IMAGES) by Neirao